These are just some of Jeff Mermelstein's pictures taken mainly on the streets of New York in the last few years. A world of everyday neurosis, minor catastrophe, panic, charm, indiscretion, revelation, fallen pride, deflated bravado, pricked narcissism, and unexpected affection. In a culture in which seemingly everything is contrived for the camera, it is heartening, and horrifying, to see what it looks like when it doesn't think it is being photographed, or at least photographed the way Jeff Mermelstein does it. These are iPhone pictures, most of which first appeared on Instagram. That means they got viewed on devices similar to the one that made them, and in similar circumstances.